The hover and the hum
Marlene zooms in on this Tinkerbell-sized hummer! “Here is a beautiful Hummingbird that I spotted at Jackfish Lake near Athabasca. This little guy was brave and hovered so I could take as many pictures as I wanted”. At incredible speeds they dart up, down, upside down – even backwards – and as we see here, show off their famous hover.
DID YOU KNOW? To hover, the wings beat horizontally in a flattened figure-of-eight pattern. The slight lift and drag forces balance out so that the bird hangs almost motionless. At top speed, the body is near-horizontal and the wings beat almost vertically to produce maximum forward thrust. And those beats are astonishingly fast - anywhere from 55 to 80 times a second!
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July 11th, 2012 at 4:05 amhttp://comfortablehome.ca/